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A low temperature cyclone gas generator

A gas generator and cyclone technology, which is applied to machines/engines, jet propulsion devices, rocket engine devices, etc., can solve the problems of easy blockage and damage to downstream equipment, easy blockage and burn through, and inclusion of solid particles, etc. Simple, long life, low cost effect

Active Publication Date: 2020-08-04
HUBEI SANJIANG AEROSPACE JIANGHE CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Low combustion temperature solid propellants generally have the phenomenon of incomplete combustion of grains, which leads to the inclusion of a large amount of solid particles (mainly carbon powder) in the exhaust gas, which is easy to block and damage downstream equipment, such as turbine blades and attitude rails in liquid rocket engines. Control the gas valve in the engine, etc.
At present, the main method of gas filtration for gas generators or solid rocket motors is filter screen, which has low filtration efficiency and is prone to failures such as clogging and burn-through

Method used

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  • A low temperature cyclone gas generator
  • A low temperature cyclone gas generator
  • A low temperature cyclone gas generator

Examples

Experimental program
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Embodiment 1

[0023] Such as Figure 1-3 Shown, a kind of low-temperature whirlwind gas generator, comprises the combustor 1 that connects successively, diversion chamber 2 and dedusting chamber 3, solid propellant 4 is installed in the combustion chamber, guide vane 5 is installed in the diversion chamber, in the dedusting chamber Air lift pipe 6 is installed on the axis, and air lift pipe connects nozzle 7. The dust removal chamber is a cone structure, and the large diameter end of its cross section is connected with the diversion chamber; the starting end of the air riser is located at the connection between the diversion chamber and the dust removal chamber, and the other end extends away from the dust removal chamber in the opposite direction, passing through the diversion chamber and the dust removal chamber. Connect the nozzle after the center of the combustion chamber passes through.

[0024] In a further preferred solution, the small-diameter end of the cross-section of the cone s...

Embodiment 2

[0031] Such as Figure 4-5 As shown, a low-temperature cyclone gas generator includes a combustion chamber 1, a diversion chamber 2 and a dust removal chamber 3 connected in sequence, a propellant 4 is installed in the combustion chamber, a guide vane 5 is installed in the diversion chamber, and the central axis of the dust removal chamber Air-lift pipe 6 is installed on the top, and air-lift pipe connects nozzle 7. The dust removal chamber has a straight cylinder structure, and the air riser is installed at the end of the dust removal chamber away from the diversion chamber and the combustion chamber.

[0032] Further, the number of guide blades is 3-48, which are evenly and fixedly installed inside the guide chamber. The guide angle of the guide vane is 6-45°. The diameter of the diversion chamber is 140mm, the guide angle is 10°, the minimum particle diameter that can be separated is 2 microns when the length of the straight section is 200mm, and the total separation effi...

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Abstract

The invention discloses a low-temperature cyclone fuel gas generator. The low-temperature cyclone fuel gas generator comprises a combustion chamber, a diversion chamber and a dust removal chamber which are connected in sequence, wherein the combustion chamber is internally provided with a solid propellant, the diversion chamber is internally provided with a guide vane, the axis in the dust removalchamber is provided with an air lifting pipe, and the air lifting pipe is connected with a nozzle. The low-temperature cyclone fuel gas generator adopts a centrifugal separation principle, so that solid particles released by a low burning temperature propellant during combustion are collected in the fuel gas generator, and the purified fuel gas is discharged from the nozzle; a high-temperature alloy material cannot be melted; the mass fraction of residues is reduced to less than 2% from 16%, the fuel gas temperature is low, and lower precision equipment is protected; and the drug types and structural size can be adjusted according to input parameters. The low-temperature cyclone fuel gas generator has the advantages that the structure is simple, the fuel gas generator is resistant to hightemperature, the cost is low, the efficiency is high, the service life is long, and the fuel gas generator can be used repeatedly.

Description

technical field [0001] The invention belongs to the technical field of solid rocket motors, and in particular relates to a low-temperature cyclone gas generator. Background technique [0002] Low combustion temperature solid propellants generally have the phenomenon of incomplete combustion of grains, which leads to the inclusion of a large amount of solid particles (mainly carbon powder) in the exhaust gas, which is easy to block and damage downstream equipment, such as turbine blades and attitude rails in liquid rocket engines. Control the gas valve in the engine, etc. At present, the main method of gas filtration for gas generators or solid rocket motors is filter screens, which have low filtration efficiency and are prone to failures such as clogging and burn-through. Contents of the invention [0003] In order to solve the above technical problems, the present invention provides a low-temperature cyclone gas generator, which can remove solid particles in the gas and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02K9/32F02K9/24
CPCF02K9/24F02K9/32
Inventor 朱赤陈永钊吕磊余永春李洋喻立
Owner HUBEI SANJIANG AEROSPACE JIANGHE CHEM TECH